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CVE Record

CVE-2017-10737: XnView Classic for Windows Version 2.40 allows attackers to execute arbitrary code or cause a denial of ser...

XnView Classic for Windows Version 2.40 allows attackers to execute arbitrary code or cause a denial of service via a crafted .rle file, related to a "User Mode Write AV starting at ntdll_77df0000!RtlpCoalesceFreeBlocks+0x00000000000002e6."

UnknownCVSS not scoredNot KEV-listedUpdated
Glexia's TakeAutomated analysisunknown

Security readout for executives and security teams

Plain-English summary

CVE-2017-10737 affects XnView Classic for Windows 2.40. A malicious .rle image file can crash the application and may allow arbitrary code execution when opened. The available sources do not provide CVSS scoring, affected CPEs, confirmed patch details, or evidence of active exploitation.

Executive priority

Prioritize if the organization still uses XnView Classic 2.40 for external or customer-supplied images. Otherwise, handle as a legacy software hygiene issue with uncertain severity due to missing scoring and patch detail.

Technical view

The CVE describes a crafted .rle file triggering a user-mode write access violation related to ntdll RtlpCoalesceFreeBlocks. The stated impact is arbitrary code execution or denial of service in XnView Classic for Windows 2.40. Public source data does not identify a CWE, CVSS vector, or vendor remediation.

Likely exposure

Exposure is likely limited to Windows endpoints running XnView Classic 2.40, especially where users process untrusted image files or receive image attachments. Systems without this version, or where .rle files are not opened in XnView Classic, are not shown as affected by the provided sources.

Exploitation context

The source bundle identifies crafted-file exploitation potential, but does not show active exploitation. CISA KEV status is false. Treat this as a user-interaction risk: successful exploitation would require the vulnerable application to parse a malicious .rle file.

Researcher notes

Evidence is thin: the CVE record names product version and impact, but lacks CVSS, CWE, CPE, and remediation metadata. The GitHub advisory is the main technical reference. Do not assume affected versions beyond XnView Classic for Windows 2.40 from these sources.

Mitigation direction

  • Inventory Windows endpoints for XnView Classic 2.40.
  • Check official XnView guidance for fixed versions or workarounds.
  • Avoid opening untrusted .rle files in XnView Classic.
  • Use endpoint controls to restrict risky legacy image viewers where feasible.

Validation and detection

  • Confirm whether XnView Classic 2.40 is installed on managed Windows systems.
  • Review file association settings for .rle images.
  • Check whether users receive or process external .rle files.
  • Verify remediation against vendor guidance before closing findings.
Prepared
Confidence
medium
Sources
3

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

description · low confidence lookup

Execution behavior lookup

The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2017-10737 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.